Plants usually annual, rarely perennial, 8-40 cm. Leaves: blade linear to oblanceolate, 0.8-5 × 0.05-0.2 cm, sometimes with hyaline basal teeth 0.2-0.4 mm, apex obtuse or acute, surfaces glabrous or scabrid. Inflorescences 2-12(-25) cm; bracts persistent, linear to lanceolate, 1-1.5 mm. Flowers: sepals lanceolate to deltate, 0.7-1.5(-2) mm; petals whitish, ovate, slightly shorter than sepals, 0.7-1(-1.7) mm, usually distinct, sometimes barely connate basally; filaments 1.5(-2) mm, barely connate basally; anthers 0.3-0.5 mm. Capsules sessile or subsessile, compressed-subglobose, 1.7-3 × 2-3.4 mm, apically 4-toothed, teeth acute, 0.5-0.7 mm. Seeds black or brown, 0.5-0.7 mm. Flowering (Jan-)Feb-Jul(-Dec). Pastures, desert washes, sand dunes, creosote scrub, mesquite thickets, volcanic soil, sometimes in brackish or alkaline soils; 60-1200(-1400) m.

Santa Catalina Mountains
Sabino Canyon Recreation Area.
Location: Bear Canyon Trail near Visitor Center.
4/1/16

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